Finding the Fourth Proportional to 172,300.53, 258,416.72 and 163,756.08

Step by Step Solution

1. Step 1: Write the proportion equation
   172,300.53 : 258,416.72 = 163,756.08 : x
2. Step 2: Convert to fraction form
   172,300.53/258,416.72 = 163,756.08/x
3. Step 3: Cross multiply
   172,300.53x = 258,416.72 × 163,756.08
4. Step 4: Simplify right side
   172,300.53x = 42,317,309,073.66
5. Step 5: Solve for x
   x = 42,317,309,073.66/172,300.53
6. Step 6: Final answer
   x = 245,601.73